Wheel for use on motor-vehicles.



S. A. GURRIN. WHEEL FOR USE ON MOTOR VEHICLES.

- APPLICATION PILED' JAN.3, 1914.

Patented Nov. 24, 1914.

2 SHEETS- SYDNEY ALLEN CURRIN, OF BRISTOL, ENGLAND.

,WiiEEL m use ON MOTOR-VEHICLES.

TO aZZ whom it may concern:

, Specification of Letters Eatent.

Be it known that I, SYDNEY ALLEN CUR-'- m, a subject of the King of Great Britain,

and resident of'Bristol, in 'England, have invented certain new; and useful Improvemerits in Wheels for Use on Motor-Vehicles, of which the following is a 'spec1ficat1on.

-' This invention relates to the wheels of motor vehicles and has for itsobject to provide a simple construction of divided wheelrim of the type in which one of the clench edges of the rim can be separated from the body of the rim so as to enable the tire to be pushed on to or off the body of the rim.

One of the chief drawbacks to existing rims of this kind is that when fitting the tire it'has to be slipped straight on to the bedaof the rim. As the interior of the tire beads isof about. thesame-diamt'er asthe bed of the rim this is diiiicult, but is overcome in the present case by means of a part of the rimof reduced diameter which forms,

' as it were, a step.

Further, the body of the rim is formed with slots near" the dividing line and the separate clench comprises a ring split radially at one point and provided on its interior periphery with tongues or projections which drop into the slots, the clench being of a springy nature so that it can be sprung radially outward to disengage the tongues from the slots. p Q

In the accompanying drawings, Figure '1 shows the application of'the invention to a rim which is detachable from the Wheel, the minor part of the divisible rim being 4 shown separate. Fig. 2 is a perspective View of the major part of the divided rim. Fig.

mama Nov. 2a, 1914..

Application filed January 3, 1914. Serial Nb. 810,108.

of reduced diameterpwhich forms the step referred to. These parts A B G form the major "part of the divided-rim. The detacliable clench D constitutes the minor part and'this is formed with'a surface E which is adapted to seat upon the step C. The clench D is constituted by a ring of springy material split radially "at F as is 'shownm' Figs. 1 ends. At its inner periphery it is provided with tongues G which engage holes or-"- slots .Hgin the step C, as willbe clearly seen fromFig. 5,-a'nd these tongues are adapted to drhp intot he slotsH andiprevefi -separatic'm of'the rim parts ongues from the slots.

By .being of a springy natureth'e clench D can'be sprung apart so as to'separate the An important feature is that the slot F is located-opposite or close to either the tire valve J, see Fig. 3,-or one of the securityv bolts, when the latter are used. Usually with this type of rim separate security bolts 3 1s a face view .of the" parts shown in Fig.

l with the detachable clench partially de-y tached; Fig. 4 illustrates the method of attachment of the tire to the rim. Fig; 5 is a cross sectional View of part of the rim with the clench detached, while Fig. 6 is a lacement is effected by the reversal f the.

not tend to return to their slots;

are dispensed with and a special knownform of bolt valve is used which prevents creeping,of-th cover. This at the same time prevents separation of the ends F of g the clench when the tire is deflated.

To insure the clench D being correctly replaced some locating means is desirable. For this purpose the clench may be formed with nptph as at K, Fig. 1, which is engaged by a tongue L, Figs. 2 and 3, which is arranged immediately opposite to the hole M through which the valve. passes. Assuming that the Wheel has been in use and that itis. desired to remove the tire, this is firs't 7 deflated and the valve slacked ofi" so a to free the abutting ends F of the clench. The ends of the clench are then pushed radially outward into the position shown in Fig. 3 .either bythe hands or with the aid of a lever-so that the tongues G near theends F are disengaged from the slots. The

clench tends to separate from the remainder of the rim at this point under the pressure of the tire so that these tongues do The parts of the clench farther away (as at N and O in Fig. 3) fromthe ends are then dealt with in the sameway', until the detachable clench falls ofl'lthe body of the rim. Re-

a flange Z. In this flange are a number of holes Z which are shown Figs l and 3,

and through which screws may be passed to engage threads on the telly. To remove the rim from the Wheel the screws' -clench and may be circular or elongated, engaging corresponding holes in the major part A. I

Alternatively, as shownin Fig. 9, instead of having holes in '.the major part the tongues or the equivalent G 'may' engage' recesses in the ste C. In some cases this is preferable, particularly in the case'of a Wire Wheel, and as it obviates any chance of Water or foreign matter passing through into the tire space.

The employmentot this. invention does not add appreciably to the- Weight of the said minor part.

rim, While it ehablesthe tire to be removed and replaced Without the use of considerable strength. a

What I claim as my invention, and desire to secure by Letters Patent of the United States is- A Wheel rim comprising a major part having a narrow step provided with recesses,

a radially split minor part of spring-like material, forming a clen'ch and having a narrow face adapted to seat on the narrow step of said major part and provided with a notch, projections extending from the narrow face-of said minor part and adapted'to enter the recesses in the narrow step of said major part, and a. tongue on the said major part adapted to register with the notch in It testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

- SYDNEY ALLEN CURRIN.

Witnesses:

- 'E. J. FrissnLL,

E. TYLER. 

